# CVE-2022-0218: WP HTML Mail <= 3.0.9 Missing Authorization on REST-API Route

> Unauthenticated attackers can access a REST API endpoint to retrieve and modify theme settings, potentially injecting malicious JavaScript.

- **Severity:** High 8.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Feb 2022
- **Updated:** 10 Feb 2025
- **Also known as:** GHSA-6434-hpfm-8425

## What is CVE-2022-0218?

CVE-2022-0218 is a high-severity missing authorization vulnerability in codemiq WP HTML Mail, published on 4 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The WP HTML Mail WordPress plugin is vulnerable to unauthorized access which allows unauthenticated attackers to retrieve and modify theme settings due to a missing capability check on the /themesettings REST-API endpoint found in the ~/includes/class-template-designer.php file, in versions up to and including 3.0.9. This makes it possible for attackers with no privileges to execute the endpoint and add malicious JavaScript to a vulnerable WordPress site.

Weakness: CWE-862 (Missing Authorization), CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2022-0218?

It affects 1 product.


Products: Codemiq Wordpress Email Template Designer.

## How do I fix CVE-2022-0218?

No fix has been published for CVE-2022-0218 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-0218 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-0218 exists.

Public exploit code:

- HTML Email Template Designer < 3.1 - Missing Authorization on Rest Route (nuclei): http/cves/2022/CVE-2022-0218.yaml

## Other vulnerabilities in codemiq WP HTML Mail

- [CVE-2021-20779](https://insights.sbomify.com/CVE-2021-20779/): Cross-site request forgery in WordPress Email Template Designer - WP HTML Mail (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-0218 and fix it if it is affected.

What it is: CVE-2022-0218 is a high-severity missing authorization vulnerability in codemiq WP HTML Mail, published on 4 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-0218 exists.

Affected product: codemiq WP HTML Mail. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-0218/ (Markdown: https://insights.sbomify.com/CVE-2022-0218/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-0218
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-0218
- OSV: https://osv.dev/vulnerability/CVE-2022-0218

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-0218/
Summaries are generated and may contain mistakes; the official description above is the record.